GLASS PANEL FOR CATHODE RAY TUBE, CATHODE RAY TUBE EMPLOYING THIS GLASS PANEL AND METHOD FOR PRODUCING CATHODE RAY TUBE

摘要

GLASS PANEL FOR CATHODE RAY TUBE, CATHODE RAY TUBE EMPLOYING THIS GLASS PANEL AND METHOD FOR PRODUCING CATHODE RAY TUBE ABSTRACT A CRT in its entirety is to be rendered lightweight without detracting from theresistance against pressure of a panel or from characteristics desirable for the CRT.To this end, there is provided a glass panel for a CRT obtained on chemicallyreinforcing the glass containing 57 to 64 wt% of SiO[err], 0.1 to 4 wt% of Al[err]O[err], 5 to 10wt% of Na[err]O, 5 to 10 wt% of K[err]O, 7 to 13 wt% of SrO, 7 to 11 wt% of BaO, 0.1 to 2wt% of TiO[err], 0.1 to 4 wt% of ZrO[err] and 0.01 to 1 wt% of CeO[err].